100% high quality and brand new, widely used in metal, mould and mechanical drive applications. D40 L60 hole 16mm to 16mm rigid coupling shaft rod... - Grandado CNC Model Coupling Shaft Coupler Mini D9 L20 Shaft Coupler Brass Rigid 3D Print CNC Model Making Miniature Small Rigid Brass Coupling 2/3/4/5/6 Mm Shaft Coupler Rigid (2 X 2 Mm Mini Shaft Coupler D9L20 Brass Flexible Shaft Coupler Rigid Couplings Motor Connector for CNC 3D Printer RC Car Boat Model. These couplings are rigid types and are Used in variety of Industrial applications and automation to join motor and leadscrew or ball screws Widely used, shaft coupling is manufactured based on international flange standard, widely used in model shaft connections. Shaft Coupler Mini D9 L20 Shaft Coupler Brass Rigid 3D Print CNC Model Making, Miniature Small Rigid Brass Coupling 2/3/4/5/6 mm Shaft Coupler Rigid (3.17 x 3.17 mm) Pack of 2 Brand Product Name : Motor Shaft Coupler ;Color : Brass;